openlayers
Version:
Build tools and sources for developing OpenLayers based mapping applications
67 lines (52 loc) • 1.95 kB
JavaScript
goog.provide('ol.test.ImageTile');
goog.require('ol.ImageTile');
goog.require('ol.Tile');
goog.require('ol.events');
goog.require('ol.events.EventType');
goog.require('ol.source.Image');
describe('ol.ImageTile', function() {
describe('#load()', function() {
it('can load idle tile', function(done) {
var tileCoord = [0, 0, 0];
var state = ol.Tile.State.IDLE;
var src = 'spec/ol/data/osm-0-0-0.png';
var tileLoadFunction = ol.source.Image.defaultImageLoadFunction;
var tile = new ol.ImageTile(tileCoord, state, src, null, tileLoadFunction);
var previousState = tile.getState();
ol.events.listen(tile, ol.events.EventType.CHANGE, function(event) {
var state = tile.getState();
if (previousState == ol.Tile.State.IDLE) {
expect(state).to.be(ol.Tile.State.LOADING);
} else if (previousState == ol.Tile.State.LOADING) {
expect(state).to.be(ol.Tile.State.LOADED);
done();
} else {
expect().fail();
}
previousState = state;
});
tile.load();
});
it('can load error tile', function(done) {
var tileCoord = [0, 0, 0];
var state = ol.Tile.State.ERROR;
var src = 'spec/ol/data/osm-0-0-0.png';
var tileLoadFunction = ol.source.Image.defaultImageLoadFunction;
var tile = new ol.ImageTile(tileCoord, state, src, null, tileLoadFunction);
var previousState = tile.getState();
ol.events.listen(tile, ol.events.EventType.CHANGE, function(event) {
var state = tile.getState();
if (previousState == ol.Tile.State.ERROR) {
expect(state).to.be(ol.Tile.State.LOADING);
} else if (previousState == ol.Tile.State.LOADING) {
expect(state).to.be(ol.Tile.State.LOADED);
done();
} else {
expect().fail();
}
previousState = state;
});
tile.load();
});
});
});